Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(9.2, 7.86)}
B. {(-9.2, 7.86)}
C. no solution; ?
D. infinitely many solutions; {
y = 1.3x - 4.1} or {
y = 0.7x + 1.42}
Answer: A
You might also like to view...
Find the exact value by using a half-angle identity.tan 75°
A. 2 + 
B. -2 + 
C. -2 - 
D. 2 - 
Write the answer to the problem as an algebraic expression.A theater ticket for adults is A dollars and the price of a child's ticket is c dollars. If 21 adults and 43 children attend the theater one night, how much money did the theater make?
A. 21c + cA dollars B. 903Ac dollars C. 21A + 43c dollars D. 43A + 21c dollars
Solve.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches, according to the function 
What rainfall produces the maximum number of mosquitoes?
A. 9.5 in. B. 19 in. C. 361 in. D. 0 in.
Answer the question or give an explanation.Explain the purpose of an income statement.
What will be an ideal response?